/*
 * Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @assertion Dart is lexically scoped. Scopes may nest. A name or declaration d is
 * available in scope S if d is in the namespace induced by S or if d is available
 * in the lexically enclosing scope of S. We say that a name or declaration d is in
 * scope if d is available in the current scope.
 * It is a compile-time error if there is more than one entity with the same name 
 * declared in the same scope, with the exception of the operator -, where both 
 * a unary and a binary version may coexist.
 * @description Checks that it is a compile-time error if a typedef declaration
 * declares two identically named parameters.
 * @compile-error
 * @author iefremov
 * @reviewer kaigorodov
 */

typedef f(x, x);

main() {
  try {
    f foo = (x, y){};
  } catch(x){}
}